AU3352878A - Ground fault protective apparatus of field windings - Google Patents

Ground fault protective apparatus of field windings

Info

Publication number
AU3352878A
AU3352878A AU33528/78A AU3352878A AU3352878A AU 3352878 A AU3352878 A AU 3352878A AU 33528/78 A AU33528/78 A AU 33528/78A AU 3352878 A AU3352878 A AU 3352878A AU 3352878 A AU3352878 A AU 3352878A
Authority
AU
Australia
Prior art keywords
ground fault
field windings
protective apparatus
fault protective
windings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU33528/78A
Other versions
AU512126B2 (en
Inventor
Y. and Toda Y Nagura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of AU3352878A publication Critical patent/AU3352878A/en
Application granted granted Critical
Publication of AU512126B2 publication Critical patent/AU512126B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/346—Testing of armature or field windings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H02H3/17—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
    • H02H7/065—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors against excitation faults
AU33528/78A 1977-02-23 1978-02-22 Ground fault protective apparatus of field windings Expired AU512126B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP52-18087 1977-02-23
JP1808777A JPS53103550A (en) 1977-02-23 1977-02-23 Protective device for earthed field windings of alternator

Publications (2)

Publication Number Publication Date
AU3352878A true AU3352878A (en) 1979-08-30
AU512126B2 AU512126B2 (en) 1980-09-25

Family

ID=11961853

Family Applications (1)

Application Number Title Priority Date Filing Date
AU33528/78A Expired AU512126B2 (en) 1977-02-23 1978-02-22 Ground fault protective apparatus of field windings

Country Status (4)

Country Link
US (1) US4187525A (en)
JP (1) JPS53103550A (en)
AU (1) AU512126B2 (en)
CA (1) CA1099782A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321681A (en) * 1979-09-21 1982-03-23 Westinghouse Electric Corp. Protective relay apparatus
US4335437A (en) * 1980-04-15 1982-06-15 Westinghouse Electric Corp. Circuit interrupter with energy management functions
JPS5826523A (en) * 1981-08-07 1983-02-17 三菱電機株式会社 Ground detector for ac generator
JPS5826522A (en) * 1981-08-07 1983-02-17 三菱電機株式会社 Ground detector for ac generator
JPS5826524A (en) * 1981-08-07 1983-02-17 三菱電機株式会社 Ground detector for ac generator
AU548499B2 (en) * 1981-09-17 1985-12-12 Anderson Group Plc Control system for eddy current coupling drive for armoured face conveyors
DE3151864C2 (en) * 1981-12-30 1985-02-14 Messer Griesheim Gmbh, 6000 Frankfurt Protective device for welding power sources with one welding circuit
JPS58197523A (en) * 1982-05-13 1983-11-17 Toyota Central Res & Dev Lab Inc Temperature regulator
GB2157835B (en) * 1984-04-11 1987-10-21 Central Electr Generat Board Monitoring earth faults on dynamoelectrics machines
JPS61116922A (en) * 1984-11-07 1986-06-04 三菱電機株式会社 High-speed current-limiting breaker
US4594356A (en) * 1985-01-08 1986-06-10 Key Pharmaceuticals, Inc. Method for inducing mydriasis in animals
US4679111A (en) * 1985-11-12 1987-07-07 Westinghouse Electric Corp. Resistance to ground checker
US4727320A (en) * 1986-11-24 1988-02-23 General Electric Company Method and apparatus for motor size determination
US5636226A (en) * 1989-12-14 1997-06-03 Texas Instruments Incorporated Fault sensing circuit and method
US5168416A (en) * 1990-09-18 1992-12-01 General Electric Company Automatic flashover protection for locomotive traction motors
US5126658A (en) * 1991-01-22 1992-06-30 Westinghouse Electric Corp. Generator rotor winding ground detection
US5325044A (en) * 1991-09-24 1994-06-28 Bartol Luis E Electronic voltage regulator protected against failure due to overload, or due to loss of a reference voltage
JP3468817B2 (en) * 1994-02-25 2003-11-17 株式会社東芝 Field ground fault detector
JP3517617B2 (en) * 1999-09-17 2004-04-12 株式会社東芝 Electric leakage detection method for electrical equipment
US6501629B1 (en) 2000-10-26 2002-12-31 Tecumseh Products Company Hermetic refrigeration compressor motor protector
US7834573B2 (en) * 2007-07-31 2010-11-16 Caterpillar Inc Winding fault detection system
US8781764B2 (en) 2011-03-16 2014-07-15 Deere & Company System for detecting a short circuit associated with a direct current bus
CN102645599B (en) * 2012-04-27 2014-07-09 中国铁路通信信号上海工程集团有限公司 System and method for switching value data collection of lightning protection device
US9709631B2 (en) * 2013-07-24 2017-07-18 Mitsubishi Electric Corporation Diagnosis apparatus for field winding type rotating electric machine and diagnosis method for field winding type rotating electric machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825006A (en) * 1953-05-29 1958-02-25 Jack & Heintz Inc Ground fault protector
BE638540A (en) * 1962-10-13
US3631321A (en) * 1970-03-30 1971-12-28 Lear Siegler Inc Static ground fault circuit
JPS52100149A (en) * 1976-02-18 1977-08-22 Tokyo Electric Power Co Inc:The Digital failure point evaluating unit

Also Published As

Publication number Publication date
CA1099782A (en) 1981-04-21
AU512126B2 (en) 1980-09-25
JPS53103550A (en) 1978-09-08
US4187525A (en) 1980-02-05

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